Physiological and Behavioral Differences in Magellanic Penguin Chicks in Undisturbed and Tourist‐Visited Locations of a Colony

By B. Walker, P. Boersma, J. Wingfield. 2005

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Penguins : natural history and conservation (2013, background): “Generally, other species of penguins tolerate intense tourism, but stress hormones are elevated (Walker et al. 2005).”
Effects of habituation, research and ecotourism on faecal glucocorticoid metabolites in wild western lowland gorillas: Implications for conservation management (2014, background): “This seems to be the case in Magellanic penguins (Spheniscus magellanicus) exposed to tourism (Walker et al., 2005) and is well documented in research investigating the stress impacts of wildlife tourism on other animal species (Fowler, 1999; Millspaugh and Washburn, 2004; Müllner et al.”
Ski tourism affects habitat use and evokes a physiological stress response in capercaillie Tetrao urogallus: a new methodological approach (2007, background): “Thus high corticosterone concentrations may indicate that an animal is stressed, even if obvious behavioural changes cannot be detected ( Walker, Boersma & Wingfield 2005 ).”